Wheel hub connection components and vehicle

Abstract

This disclosure relates to the field of vehicle technology, specifically to a wheel hub connection assembly and a vehicle. The wheel hub connection assembly includes: a wheel hub bearing, a drive shaft, and a sliding member. The wheel hub bearing has a mounting hole. The drive shaft includes a main body and a connecting part, with the connecting part passing through the mounting hole. The main body has a first end face facing the wheel hub bearing, and the wheel hub bearing has a second end face facing the main body. The sliding member is disposed between the first end face and the second end face, and is slidable circumferentially relative to at least one of the first end face and the second end face relative to the drive shaft. The wheel hub connection assembly of this disclosure is less prone to generating abnormal noise, which is beneficial to improving the user experience.

Description

Technical Field

[0001] This disclosure relates to the field of vehicle technology, and more specifically, to a wheel hub connection assembly and a vehicle. Background Technology

[0002] In related technologies, when a vehicle starts or reverses, the power of the engine or motor can be transmitted to the wheel hub through the drive shaft. The drive shaft is rigidly connected to the end face of the wheel hub. Due to long-term friction, the roughness increases, which can easily cause abnormal noise. Utility Model Content

[0003] This disclosure aims to at least partially address one of the technical problems in the related art.

[0004] Therefore, embodiments of this disclosure propose a wheel hub connection assembly that is less prone to generating abnormal noise, thereby improving the user experience.

[0005] Embodiments of this disclosure also propose a vehicle.

[0006] The wheel hub connection assembly of the present disclosure includes: a wheel hub bearing having a mounting hole therein; a drive shaft including a main body and a connecting part, the connecting part passing through the mounting hole, the main body having a first end face facing the wheel hub bearing, and the wheel hub bearing having a second end face facing the main body; and a sliding member disposed between the first end face and the second end face, the sliding member being slidable circumferentially relative to at least one of the first end face and the second end face relative to the drive shaft.

[0007] According to the wheel hub connection assembly of the present disclosure, when the vehicle starts or reverses, the first end face and the second end face will slide relative to each other. Since the sliding member is disposed between the first end face and the second end face, the sliding member can slide relative to at least one of the first end face and the second end face along the circumferential direction of the drive shaft. This can reduce the frictional impact between the first end face and the second end face, reduce the probability of abnormal noise at the connection position of the wheel hub bearing and the drive shaft, improve the user experience, and has a simple structural design and low cost.

[0008] In some embodiments, at least one of the first end face and the second end face is provided with a groove, the groove extending circumferentially along the drive shaft, and the sliding member slidably engaging with the groove. The hub connection assembly of this disclosure, by providing a groove, can guide the sliding of the sliding member, thereby improving the accuracy of the sliding member's circumferential movement. Furthermore, the groove can constrain the radial position of the sliding member, preventing it from disengaging from the hub bearing or drive shaft due to prolonged friction, thus improving the reliability of the hub connection assembly.

[0009] In some embodiments, the slider is disposed within the groove, and the slider at least partially protrudes from the groove to abut against at least one of the first end face and the second end face. Because the slider at least partially protrudes from the groove, direct contact between the first and second end faces is avoided, and the abutment between at least one of the first and second end faces and the slider ensures normal rotation of the slider within the groove, reducing the probability of abnormal noise occurring at the connection point between the wheel hub bearing and the drive shaft.

[0010] In some embodiments, in a projection plane orthogonal to the axial direction of the drive shaft, the profile of the groove is a closed annulus, and the sliding member is annular and at least partially disposed within the groove. This reduces the number of parts required for assembling the hub connection assembly, facilitates disassembly and assembly, and effectively reduces abnormal noise.

[0011] In some embodiments, the number of sliding members is at least two, and the wheel hub connection assembly further includes multiple elastic members disposed between two adjacent sliding members. When the vehicle starts or reverses, the drive shaft and the wheel hub bearing slide relative to each other. At this time, the sliding members slide relative to the groove under this force to reduce frictional impact between the first and second end faces, eliminating abnormal noise. Simultaneously, the elastic members are compressed to store energy, reducing the sliding speed of the sliding members. When the power of the wheel hub connection assembly stabilizes, the elastic members release their elastic potential energy to return the sliding members to their original position. Furthermore, since the elastic members are connected between two adjacent sliding members, they can eliminate impact noise when two adjacent sliding members slide in contact.

[0012] In some embodiments, the at least two sliders are arranged circumferentially along the groove, and the elastic element is located within the groove. Because the elastic element is located within the groove, it can be concealed, reducing its space requirements and preventing interference with surrounding structures. Furthermore, the elastic element can eliminate impact noise generated when two spaced-apart sliders slide in contact.

[0013] In some embodiments, the number of sliding members is four, and the number of elastic members is four. The four sliding members and the four elastic members are arranged alternately along the circumference of the slide groove; wherein, the four sliding members are symmetrically arranged with the center point of the slide groove as the center. Since the four sliding members and the four elastic members are arranged alternately along the circumference of the slide groove, an elastic member is provided between every two adjacent sliding members. The four sliding members and the four elastic members can generally form a ring-shaped structure. The four elastic members can constrain the position of the four sliding members and have a good buffering effect on the sliding members, making it less likely to produce abnormal noise.

[0014] In some embodiments, the elastic element is a spring. This facilitates the processing and manufacturing of the elastic element, allows for convenient material selection, and reduces costs.

[0015] In some embodiments, the groove is disposed on the first end face. The hub connection assembly of this disclosure has the groove disposed on the first end face, which facilitates the machining of the groove, and the main body of the drive shaft has sufficient space to arrange the groove, resulting in high space utilization.

[0016] Another embodiment of the vehicle disclosed herein includes the wheel hub connection assembly described in any one of the embodiments of the present disclosure.

[0017] According to the embodiments of the present disclosure, when the vehicle starts or reverses, the first end face and the second end face will slide relative to each other. Since the sliding member is disposed between the first end face and the second end face, the sliding member can slide relative to at least one of the first end face and the second end face along the circumferential direction of the drive shaft. This can reduce the frictional impact between the first end face and the second end face, reduce the probability of abnormal noise at the connection position of the wheel hub bearing and the drive shaft, improve the user experience, and the structure design is simple and the cost is low. Attached Figure Description

[0018] Figure 1 This is a cross-sectional view of the hub connection assembly according to an embodiment of the present disclosure.

[0019] Figure 2 yes Figure 1 A magnified view of A in the middle.

[0020] Figure 3 This is a schematic diagram of the installation of the drive shaft, sliding member, and elastic member of the hub connection assembly according to an embodiment of the present disclosure.

[0021] Figure 4 This is a partial installation cross-sectional view of the drive shaft and sliding member of the hub connection assembly according to an embodiment of the present disclosure.

[0022] Figure label:

[0023] 1. Hub bearing; 11. Inner ring; 111. Mounting hole; 12. Flange; 121. Second end face;

[0024] 2. Drive shaft; 21. Main body; 211. First end face; 212. Slide groove; 22. Connecting part;

[0025] 3. Sliding components;

[0026] 4. Elastic components. Detailed Implementation

[0027] Embodiments of this disclosure are described in detail below, with examples of these embodiments illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this disclosure, and should not be construed as limiting it.

[0028] The following is a reference appendix. Figures 1 to 4This disclosure describes a hub connection assembly and a vehicle according to embodiments of the present disclosure.

[0029] like Figures 1 to 4 As shown, the hub connection assembly of this embodiment includes: a hub bearing 1, a drive shaft 2, and a sliding member 3. The hub bearing 1 has a mounting hole 111. The drive shaft 2 includes a main body 21 and a connecting part 22. The connecting part 22 passes through the mounting hole 111. The main body 21 has a first end face 211 facing the hub bearing 1. The hub bearing 1 has a second end face 121 facing the main body 21. The sliding member 3 is disposed between the first end face 211 and the second end face 121. The sliding member 3 is slidable along the circumference of the drive shaft 2 relative to at least one of the first end face 211 and the second end face 121.

[0030] According to the wheel hub connection assembly of the present disclosure, when the vehicle starts or reverses, the first end face 211 and the second end face 121 will slide relative to each other. Since the sliding member 3 is disposed between the first end face 211 and the second end face 121, the sliding member 3 can slide relative to at least one of the first end face 211 and the second end face 121 along the circumferential direction of the drive shaft 2. This changes the connection between the wheel hub bearing 1 and the drive shaft 2 from a rigid connection to a sliding connection, which can reduce the frictional impact between the first end face 211 and the second end face 121, reduce the probability of abnormal noise at the connection position of the wheel hub bearing 1 and the drive shaft 2, improve the user experience, and has a simple structural design and low cost.

[0031] The connecting part 22 and the mounting hole 111 can be splined, that is, the mounting hole 111 is a splined hole and the connecting part 22 is a splined shaft.

[0032] Compared to the solution of "direct rigid contact between the first end face 211 and the second end face 121", the wheel hub connection assembly of the present disclosure embodiment can reduce the frictional impact between the first end face 211 and the second end face 121, solve the abnormal noise caused by static friction between the shoulder end face of the drive shaft 2 (i.e., the first end face 211) and the inner ring end face of the wheel hub bearing 1 (i.e., the second end face 121), and improve the NVH performance of the vehicle.

[0033] It is understandable that, such as Figure 2 As shown, the sliding member 3 abuts between the first end face 211 and the second end face 121, that is, one side of the sliding member 3 abuts against the first end face 211, and the other side of the sliding member 3 abuts against the second end face 121. When the vehicle is driving stably (i.e., when the power is stable), the wheel hub bearing 1, the drive shaft 2 and the sliding member 3 are relatively fixed and rotate synchronously.

[0034] Optionally, such as Figure 2 and Figure 3As shown, at least one of the first end face 211 and the second end face 121 is provided with a sliding groove 212, which extends circumferentially along the drive shaft 2, and the sliding member 3 is slidably engaged with the sliding groove 212. For example, the sliding groove 212 is provided on the first end face 211, or the sliding groove 212 is provided on the second end face 121. As another example, both the first end face 211 and the second end face 121 are provided with sliding grooves 212, wherein the sliding groove on the first end face 211 and the sliding groove on the second end face 121 are correspondingly provided.

[0035] The hub connection assembly of this disclosure provides a guide for the sliding of the sliding member 3 by setting a groove 212, thereby improving the accuracy of the sliding member 3 during circumferential movement. On the other hand, the groove 212 can constrain the radial position of the sliding member 3 to prevent the sliding member 3 from disengaging from the hub bearing 1 or drive shaft 2 due to long-term friction, which is beneficial to improving the reliability of the hub connection assembly.

[0036] Optionally, the slider 3 is disposed within the groove 212, and at least part of the slider 3 protrudes from the groove 212 to abut against at least one of the first end face 211 and the second end face 121. Since the slider 3 protrudes at least part of the groove 212, direct contact between the first end face 211 and the second end face 121 can be avoided, and the abutment between at least one of the first end face 211 and the second end face 121 and the slider 3 can ensure that the slider 3 rotates normally within the groove 212, reducing the probability of abnormal noise at the connection position between the hub bearing 1 and the drive shaft 2.

[0037] For example, such as Figure 4 As shown, the groove 212 is provided on the first end face 211, and the sliding member 3 protrudes from the groove 212 along the axial direction of the drive shaft 2 to abut against the second end face 121. The hub connection assembly of this embodiment provides the groove 212 on the first end face 211, which facilitates the processing of the groove 212, and the main body 21 of the drive shaft 2 has sufficient space to arrange the groove 212, resulting in high space utilization.

[0038] Therefore, in the hub connection assembly of this embodiment, the slide groove 212 is provided on the first end face 211, and the sliding member 3 protrudes from the slide groove 212 along the axial direction of the drive shaft 2 to abut against the second end face 121. On the one hand, it can facilitate the processing and manufacturing of the slide groove 212 and have little impact on the structural strength of the drive shaft 2 itself. On the other hand, it can facilitate the assembly of the sliding member 3 and has a better performance.

[0039] For example, the slide 212 may also be provided on the second end face 121. This disclosure does not limit the location of the slide 212. The slide 212 being provided on the second end face 121 is also within the protection scope of this disclosure.

[0040] like Figure 4As shown, the dimension of the sliding member 3 protruding from the groove 212 is A, where 0.5mm ≤ A ≤ 1mm. For example, A can be 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, or 1.0mm. After prolonged use, the axial dimension of the sliding member 3 along the drive shaft 2 will thin due to friction. When the dimension of the sliding member 3 protruding from the groove 212 is small (less than 0.5mm), the first end face 211 and the second end face 121 may come into contact, leading to sliding failure of the sliding member 3 and causing abnormal noise in the wheel hub connection assembly. When the dimension of the sliding member 3 protruding from the groove 212 is large (greater than 1mm), the distance of the locking nut installation position reserved at the end of the connecting part 22 is short, affecting the normal assembly of the locking nut.

[0041] In one example, in a projection plane orthogonal to the axial direction of the drive shaft 2, the profile of the groove 212 is a closed ring, and the slider 3 is ring-shaped and at least partially disposed within the groove 212. It can be understood that the profile of the groove 212 is annular, and the slider 3 is also annular. The slider 3 is coaxially fitted within the groove 212, and the slider 3 can slide circumferentially along the groove 212. This results in fewer parts during assembly of the hub connection assembly, easier disassembly and assembly, and better improvement in reducing abnormal noise.

[0042] In other examples, the profile of the groove 212 can also be semi-circular in the projection plane orthogonal to the axis of the drive shaft 2. The central angle corresponding to the semi-circular shape can be greater than 180 degrees, less than 180 degrees, or equal to 180 degrees.

[0043] Optionally, the inner and outer circumferential contours of the slide groove 212 can be circular, elliptical, or other closed polygons. The shape of the inner and outer circumferential contours of the slide groove 212 disclosed herein is not limited.

[0044] For example, the number of sliders 3 is at least two. For instance, multiple sliders 3 are arranged at circumferential intervals along the groove 212. By setting the number of sliders 3 to multiple, the hub connection assembly of the embodiments of this disclosure facilitates the sliding of multiple sliders 3 within the groove 212, compared to the scheme where "the slider 3 is a whole ring", and the resistance of each slider 3 is small when sliding relative to the groove 212.

[0045] For example, the slider 3 can be a fan-shaped structure, or a cylinder or a sphere. This disclosure does not limit it in this way, and sliders 3 of the aforementioned shapes are also within the protection scope of this disclosure.

[0046] In one example, the number of sliding members 3 is at least two, and the hub connection assembly also includes multiple elastic members 4, which are disposed between two adjacent sliding members 3. When the sliding member 3 slides relative to the first end face 211 and the second end face 121 along the circumference of the drive shaft 2, the elastic member 4 presses against the sliding member 3 in the opposite direction to the direction of movement of the sliding member 3. It can be understood that when the sliding member 3 slides in the groove 212, the elastic member 4 can apply a reverse force to the sliding member 3 to buffer the sliding member 3, thereby avoiding the problem of the sliding member 3 sliding rapidly relative to the groove 212, that is, slowing down the sliding speed of the sliding member 3 to reduce the wear of the sliding member 3, and further reducing the problem of abnormal noise generated when the hub connection assembly is working.

[0047] When the vehicle starts or reverses, the drive shaft 2 and the wheel hub bearing 1 slide relative to each other. At this time, the sliding member 3 slides relative to the groove 212 under the action of this force to reduce the frictional impact between the first end face 211 and the second end face 121, eliminating abnormal noise. At the same time, the elastic member 4 is compressed to store energy, thereby reducing the sliding speed of the sliding member 3. When the power of the wheel hub connection assembly stabilizes, the elastic member 4 releases its elastic potential energy to return the sliding member 3 to its original position. In addition, since the elastic member 4 is connected between two adjacent sliding members 3, the elastic member 4 can eliminate the impact noise when the two adjacent sliding members 3 slide in contact.

[0048] In one example, at least two sliders 3 are arranged circumferentially along the groove 212, and the elastic element 4 is located within the groove 212. Since the elastic element 4 is located within the groove 212, it can be hidden to reduce the space occupied by the elastic element 4, prevent the elastic element 4 from interfering with the surrounding structure, and eliminate the impact noise generated when the two spaced sliders 3 slide in contact.

[0049] In another example, the elastic element 4 is located outside the slide groove 212, meaning that it is sufficient to ensure that the elastic element 4 is not located between the slider 3 and the first end face 211 (or the second end face 121), depending on which end face the slider 3 contacts. This disclosure does not limit the position of the elastic element 4 relative to the slide groove 212; that is, the elastic element 4 is within the protection scope of this disclosure whether it is outside or inside the slide groove 212.

[0050] Optionally, there are four sliding elements 3 and four elastic elements 4, arranged alternately along the circumference of the slide groove 212; wherein the four sliding elements 3 are symmetrically arranged with the center point of the slide groove 212 as the center. It can be understood that an elastic element 4 is provided between every two adjacent sliding elements 3, and the four sliding elements 3 and four elastic elements 4 can roughly form a ring-shaped structure. The four elastic elements 4 can constrain the position of the four sliding elements 3 and provide good buffering effect, making it less prone to abnormal noise. Furthermore, since the four sliding elements 3 are symmetrically arranged with the center point of the slide groove 212 as the center, the force balance of the four sliding elements 3 during sliding can be improved.

[0051] In other examples, the number of sliders 3 and elastic elements 4 can also be more than four, and the number of sliders 3 and elastic elements 4 can be the same.

[0052] For example, the elastic element 4 is a spring, which facilitates the processing and manufacturing of the elastic element 4, and the material selection is convenient and the cost is low.

[0053] Optionally, at least one of the first end face 211 and the second end face 121 is provided with a friction-reducing agent or a wear-resistant coating between itself and the sliding member 3. For example, the sliding member 3 is provided with a friction-reducing agent or a wear-resistant coating on both sides along the axial direction of the drive shaft 2, and the friction-reducing agent can be a material such as molybdenum disulfide. By providing a friction-reducing agent or a wear-resistant coating, the wheel hub connection assembly of the embodiments of this disclosure can slow down the wear cycle of the sliding member 3, reduce abnormal noise, and extend the service life of the wheel hub connection assembly.

[0054] like Figure 1 and Figure 2 As shown, the hub bearing 1 includes an inner ring 11 and a flange 12. A mounting hole 111 is provided on the inner ring 11, and the flange 12 is located on the side of the inner ring 11 adjacent to the first end face 211, with the flange 12 arranged circumferentially around the inner ring 11. It can be understood that the flange 12 is essentially a flanged structure of the inner ring 11, and the second end face 121 is located on the flange 12, meaning that the flange 12 abuts against the sliding member 3.

[0055] Another embodiment of the vehicle disclosed herein includes the wheel hub connection assembly disclosed herein.

[0056] According to the embodiments of the present disclosure, when the vehicle starts or reverses, the first end face 211 and the second end face 121 will slide relative to each other. Since the sliding member 3 is disposed between the first end face 211 and the second end face 121, the sliding member 3 can slide relative to at least one of the first end face 211 and the second end face 121 along the circumferential direction of the drive shaft 2. This can reduce the frictional impact between the first end face 211 and the second end face 121, reduce the probability of abnormal noise at the connection position between the wheel hub bearing 1 and the drive shaft 2, improve the user experience, and has a simple structural design and low cost.

[0057] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0058] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0059] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0060] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0061] In this disclosure, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0062] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of this disclosure.

Claims

1. A wheel hub connection assembly, characterized by include: A hub bearing (1) is provided with a mounting hole (111); A drive shaft (2) includes a main body (21) and a connecting part (22). The connecting part (22) passes through the mounting hole (111). The main body (21) has a first end face (211) facing the hub bearing (1). The hub bearing (1) has a second end face (121) facing the main body (21). A slider (3) is disposed between the first end face (211) and the second end face (121), and the slider (3) is slidable circumferentially relative to at least one of the first end face (211) and the second end face (121) along the drive shaft (2).

2. The hub connection assembly of claim 1, wherein, At least one of the first end face (211) and the second end face (121) is provided with a groove (212), the groove (212) extends circumferentially along the drive shaft (2), and the sliding member (3) is slidably engaged with the groove (212).

3. The hub connection assembly of claim 2, wherein, The slider (3) is disposed in the groove (212), and the slider (3) protrudes at least partially from the groove (212) to abut against at least one of the first end face (211) and the second end face (121).

4. The hub connection assembly of claim 2, wherein, In the projection plane orthogonal to the axial direction of the drive shaft (2), the profile of the groove (212) is a closed ring, and the slider (3) is annular and at least partially disposed in the groove (212).

5. The hub connection assembly of claim 2, wherein, The number of the sliding members (3) is at least two, and the hub connection assembly also includes a plurality of elastic members (4), which are disposed between two adjacent sliding members (3).

6. The hub connection assembly of claim 5, wherein, The at least two sliding members (3) are arranged circumferentially along the groove (212), and the elastic member (4) is located within the groove (212).

7. The hub connection assembly of claim 5, wherein, The number of the sliding members (3) is four, and the number of the elastic members (4) is four. The four sliding members (3) and the four elastic members (4) are arranged alternately along the circumference of the slide groove (212); wherein, the four sliding members (3) are symmetrically arranged with the center point of the slide groove (212) as the center.

8. The hub connection assembly of claim 5, wherein, The elastic element (4) is a spring.

9. The hub connection assembly of any of claims 4-8, wherein, The groove (212) is provided on the first end face (211).

10. A vehicle characterized by comprising: Includes the hub connection assembly according to any one of claims 1-9.

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